Read Edit View history 额外性 éwàixìng additionality Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 额外性/ 額外性 éwàixìng additionality additionality (economics) 在评估碳减排项目时，证明其额外性至关重要。 Edit Delete References Add reference No references for this word.